Engraving method and apparatus



6. 1924 2 Sheets-Sheet l Y c. R. SEABORNE ENGRAVING METHOD AND APPARATUS Filed Oct.

1,627,205 c. R. SEABORNE ENGRAVING METHOD AND APPARATUS Filed Oct. 6. 1924 ZSheets-Sheet 2 May 3 1927.

[Zarjes f2 Seafiarne 2 characterused -for water marking paper; to'

Patented May, 3 I

PATENT sorrlcs.

cmns's 1a. smonnn; or hrrrlnromf wiseonsrmnssrenon. r hunn'rc'an mums auras. oorrrm, or cmcaao, ILLmoIB; A 'conromrxox or nnnawann.

nxemvma IE'I'HOD mnrr'anurus.

.kj imaonm a empae, am. Serial 10. 742,681.

. My invention has reference sitti g larly to a methodofand a paratus for marking or-engravin the sur acesof'largerolls, such as are use in" the manufacture of paper to produce patterns or designs .on the paper, .in the manner 'wh-ich'is commonly called water marking. f

Therolls which are usedfor water marlp ing paper are very large, and it has been extremely difficult and expensive, on accountof theirsize, to provide the necessary configuration or design on the surfaces of thejrolls. With my invention however, a .simple device is employed whereby the markingor engraving of patterns or designs enlarge rolls of this character 1s accomplished easily :at. a comparativelysmall expense. t

'1' The principal objects of my in'ventzon are to (provide asimple and convenient method an apparatus for engraving or marklng designs or patterns on the surfaces of large rolls; to minimize the expense of marking or engraving-designson large rolls of the construct the deviceso that it is capable of operating on rolls of different sizes; toarran e the device so that it is .shiftableto di erent operating positions whereby suc' -rolls such as are used 1n paper making and make it ossible for the engraving or mark-,

ing to e readily performed without requiring a'high degree of skill on the part of.

the operator. 1 p

On the drawin i Fig.1 is an en view of a device embodying-my invention;

Fig. 2 a top view thereof, with portions. of the supporting parts atone endomitted;

,Fig; 3 an enlarged line 3+3- ofFig. 2;

Fig. 4 an enlarged'sectional -v1'ew.on the line 4-,4:of Fig. 2;

Fig. 5.. an 'enlarged sectional :viewon "the line 5. 5 of Fig. 2;

Fig. 6 asimilar sectional view on the line 6.6 of Fig. 2;

V 'lIGlIdj" and ti'onal' view on the *Fig- 7 a top view of multiple sawingv line 8.8of Fig 7. j j Y Referring lawings, the-base of. the

.- Fig. 8ya' sectional view thereof, on the machineicomprises a pair of end sills 10 venient manner, as for example, byco nnect ing same with cross braces or by securing the s lls 1O d1rectly to the floor. Each of the S1115 101has a bracket 13 thereon with bearings 14 for anti-friction rolls 15 which en gage the projecting ends of the shaft 16 of the roll 11, so that the roll 11 may be read- .ily turned.

Brackets 17 and 18 extend upwardly at the front and rear ends respectively of the sills 10, and the brackets 17 of the two sills are connected together at .their upper ends by the angle iron 19, while-the brackets 18 of the two sills 10 have their upper ends connected together by an angle iron. 20. A

long guide plate 21 1s secured to the upper or horizontal flange of the angle iron' 20 and extends from side to side of the machine, and has the edges projecting beyond the upper flange of the angle iron, as shown .in Fig. 3,'so as to be engaged b 22 of the-base 23 of an'ei ograph.- This base 23 is-fslidable lengthwise of'th'e plate 21, and may be locked in any-position of adbase- 23 and clamps-against the plate 21.

The two arms 25 of the eidograph are pivoted on thebase 23 at'26, sofastoswing in a horizontal plane, and have their outer ends pivoted at 27 to an intermediate plate -28 which is 'locatediover the guide. plate 21,

and thisintermediate plate '28 preferably V has .an anti-friction roller 29 atigeachend on the up i: surface oil the guide plate 21. Each 0? roller. 30, which operates on a raisedtrackformation 31 .on the upper of the base 23. The eido ph also has anotherpair. of

ivv oted at 34to the head 33, whichlatter has guide flanges justment thereon by the thumb screw 24 which engages a threaded aperture in the -the arms'25fis also pro, vided over the base 23 withan anti--friction an extension. 36 in the form of a bent arm provided with an operating handle 37 at the outer end.

An elongated guide plate 38 is mounted on the upper or horizontal flange of the angle iron 19 as indicated in Fig. 6, and supports a pattern holder 39, which Is formed with flanges 40 engaging respectively the front and rear edges of the plate 38, so as to be movable therealong. A thumb screw 41 is threaded through the front guide flange 40 for locking the pattern holder 39 in various positions of adjustment along the plate 38. This pattern holder 39 is preferably formed with a shallow seat in the upper face to receive a pattern 42, which latter has on its upper face the design which is to be engraved on the roll 11, said pat tern being held in place by cap screws 43 at each end, which engage through apertures in the ends of the pattern 42, and are threaded into the pattern holder 39. Recesses- 44 are preferably provided in the pattern for the heads of the cap screws. For leveling up the pattern 42, a screw 45 is threade through same adjacent each corner so as to bear against the bottom of the seat in the pattern holder 39.

The outer end of the bent arm 36 is provided with a tracer stylus 46 which is located so that it may be operated by means of the handle 37 to follow the design of the pattern 42, when the latter is adjusted to the proper position along the plate 38, and the head 35 has a routing or engraving tool 47 mounted'thereon, which by reason of the eidograph structure which carries both the engraving tool and tracer stylus, is caused to follow a path corresponding to that of the tracer stylus 46 and serves to engrave the design of the pattern 42 on the surface of the roll 11 as the tracer stylus 46 follows the design of the pattern 42.

The routing tool 47 is mounted to rotate in a barrel 48 and driven from any suitable source of power through the flexible shaft 49, or in any other convenient manner, and the head 35 is formedwith a hub 50, having an aperture .to receive the barrel 48 which is clamped in position in any convenient manner, as for example, by the set screw 51.

It will be observed that the routing tool 47, in order to properly engrave the surface of the roll 11, is required to' follow a curved line of elevation as it moves across the crown of the roll 11, and to this end the upper surface of the pattern 42 is curved from front torear as shown particularly in Fig. 6 on a; radius which bears the same relation to the radius of the roll 11 as the distance of the routing tool 47 from the centers 33 bearsto the distance of the tracer stylus 46 from the same centers. Theradius' of the upper surfaced the: pattern 42 15 therefore, Suficiently less than the radius of the rollll, so that as the stylus 46 atthe outer end of the bent arm 36 moves forwardly and backwardly over the surface of the pattern 42, the routing tool 47 remains constantly in the same relative position with respect to thesurface of the roll 11, so that when the routing tool is set for a certain distance of penetration, it will out a uniform depth at any point of adjustment, so lon as the stylus 46 maintains theasame relative position or depth of penetration in the upper surface of the pattern 42.

In engraving the cylinder the operator applies pressure to the handle 37 to hold the tracer stylus 46 in engagement with the pattern 42. To lift the 'tool from engageinent with the cylinder when pressure on the handle 37 is relieved a spring device is associated with the tracer. To this end a hub 52 is formed at the juncture of the handle 37 and bent arm 36 with an aperture in which the stem 53 is slidably mounted and the stylus 46 is secured by a set screw 54 or in any convenient-manner in a socket which is provided therefor in the lower end of the stem 53. The aperture in which the stem 53 is located is enlarged at the lower end as at 55 and contains aspring 56 which is compressed between the shoulder 57 at the upper end of the enlargement 55 and an annular flange 58 of the stem 53. Lock nuts 59 are threaded on the upper end of the stem 53 to hold the spring 56 under compression and limit the sliding movement of the stem 53.

In the operation of this device, the patpattern is than marked on the section of the roll as indicated at 60 in Fig. 2, after which the roll 11 is turned the required extent so that the pattern may again be marked on the roll 11 in a section adjoining the previously marked section, and so that the design will match up with the design which has been previously marked thereon.

To facilitate the turning of the roll for this-purpose, a worm gear 61. is provided,

which may be secured to the projecting end of the shaft 16 so as to mesh with a worm 62 on a shaft 63, carried by bearings 64 and 65 of the brackets 18 and 17 respectively. The bearing. 65 referably formed with a dial on thejac'e t ereof, andthe shaft 63 is provided with a pointer 66 for convenience in adjusting the roll, and thesh ft 63 v for is completed, the eidograph and pattern are adjusted respectively along the plates 21 and 38, so as to mark a series of sections adjacent to and matching with the designs forming the, band around. the end of the roll,

. and another band is thus marked on the roll and successive bands marked thereon until marking of the entire surface of the roll has been completed.

If desired, the head 35 may be constructed so as to simultaneouslytransfer the design of'the pattern 'onto a plurality of-adjoining tools.

sections of the surface of the rollby forming thehead as shownat .68 in Figs. 7 and 8, with a luralityof laterally spaced routing ne of these tools 69 is mounted in an aperture of the boss 70 by means of the set screw 71, while the other routing tool 72 is mounted in an aperture of a block 73 which is adjustable on the head 68. The

of large rolls may be readily engraved head has a rectangular opening 7 4 to receive the block 73, which is held therein b oppositely extendin .flan es 75 on the ower end and a plate" 6 wh1ch is secured to the upper end. This block is adjustable to and from the routing tool 69 by the adjusting screws 77, so that the routing tools may be properly arranged-*so that the design made by one routing tool will match up with the design marked on the roll by the other routing tool.

From the foregoing it will be observed that I have provided a simple and convenient device by means of which the surfaces with a desi at a-comparatively small cost, and that ti: devicenis capable of being readily operated without necessitating a high degree of skill on the part of the operator.

While I have shown and described my invention in a preferred form, I am aware that various 'changes and modifications may be made without departing from the rinciples of my invention, the ,scope of whic is to be determined by the appended claims.

' I claim as my invention: I

1. In an ap aratus"-- .for engraving a design on the c lmdrical surface of a'marking roll, a main rame having supportingmeans "for the roll, a pantographic engraving device having a suitable supporting base, a tool and a tracer, a pattern corresponding to a relatively small segment of the cylindrical surface of the roll and adapted to cooperate with said tracer to guide the tool of the pantographic device to limited extents longitudinally and circumferentially ofthe roll to engrave a'correspo'nding segmental secti n f it surface, and means for hold g the roll and said supporting base and pattern against movement 1 during the engraving operations, said means permitting relative, axial and circumferential adjustments of the roll and said base and pattern to bring different longitudinal and circumferential segmental sections of the roll surface into the fie d of operation of the tool. a

2. -In an apparatus for engraving adesign on the cylindrical surface of a roll, a main frame having means for rotatably supporting the roll, apantograph frame, a supporting base therefor, an engraving tool and a tracer mounted on'said pantograph frame, and a pattern corresponding to a relatively small segment of the cylindrical surface of the-roll and adapted to cooperate with said tracer to guide the tool to limited extents longitudinally and circumferentiallyf of the roll to engrave a corresponding seg mental section of its surface, said supporting base and 'said pattern being longitudinally adjustable on said main frame to different fixed positions and said roll being rotatably adjustable to different fixed ositions, whereby diflerent longitudinal and circumferential segmental sections of the roll surface are brolught into the field of operation of said too I 3. In an apparatus for marking a design on the surface of a roll, a support for the roll, a pattern, an eidograph, said pattern 7 and said eidograph being longitudinally ad-' justable relative to theroll into a plurality of fixed operative positions whereby the same pattern may be used to mark successive longitudinal portions of the roll and means for turnm said roll about its axis to present successive circumferential portions of the roll to the eidograph and for holding the same stationary during the marking operations. a

4. An apparatus for marking a design on the surface of a roll, comprising a support for the roll, an eidograp'h, said eidograph beingbmounted so as to be longitudinally adjusta le relative to the roll into a pluralityof fixed operative positions, a pattern mount and a support therefor, said mount being adjustable on the support into a plurality of fixed operative posltions corresponding to the various fixed operative positions of said eidograph.

5. In an apparatus for engraving a design on the surface of amarking roll, the combination of a main framehaving means for rotatably supporting the roll and having supporting guldes extending longitudinally of the 1,011, tographic engraving .de-

gi ud aal y ther f, t a pl ra y f fixed;

' ferentially ing tool and the base positions, and means for. rotatably adjusting said roll and for holding the same against movement during the engraving operations.

6. In an apparatus for marking a design cm the surface of a roll, the combination of a support on which the roll is mounted to turn, an eidograph extending transversely over the roll and having a base adjustable lengthwise of the roll, a marking tool and a .tracer stylus carried by said eidograph and a pattern adjustablelengthwise of the roll and having a curved surface, the radius of which is in the same proportion to the radius of the roll as the distance between the markof the eidograph is to the distance between the tracer stylus and the base of the eidograp 7 In an apparatus for engraving a design on the surface of a marking roll, the combination of a main frame having means for rotatably supporting the roll, a pantograph frame having a base mounted on said main frame and adjustable lengthwise of the roll, a tool and a tracer-carried by said pantograph frame and a attern mounted on the main frame and a justable lengthwise of the roll, said attern corresponding to a relatively small segmental section of the cylindrical surfaceof the roll and having, a segmental cylindrical surface uponwhich the design is marked, said pattern cooperating with the tracer to guide the tool to limited extents longitudinally and circumde'pth of its out uniform. I

8. An engraving machine comprising a supporting frame provided with bearings for sustaining the roll to be engraved, a attern support mounted at one side of the onmounted on said support and gitudinal axis of said roll, a pattern adjustable thereon in. the direction of the axis of the roll into a plurality of fixed positions upon said support, a tool support extendin longitudinally of-said roll and upon the side of its axis opposite the pattern support, a tool carrier adjustable into a plurality of fixed positions lengthwise upon said tool support,

of the roll and maintain the' e a routing tool and holder therefor supported by said tool carrier and located between sald pattern support and said tool support, and an arm connected to the holder of the routing tool and provided with a tracing stylus, said stylus being mounted over said pattern.

, 9. The method of engraving a design upon the cylindrical surface of a marking roll that consists in preparing a pattern corresponding in. area to a relatively small segmental section of the area of the cylindrical surface of theroll, mounting said pattern for adjustment longitudinally of the roll to different fixed positions, mounting a pantographic en raving device for adjustment to correspon to the different positions of adjustment of the pattern, mounting the roll for rotatable adjustment to bring different circumferential segmental sections thereof into cooperative relation with the pantographic device and pattern, effecting such adjustments, and, while the roll 'is held stationary, employing the pattern in each of said-different adjustments to guide the engraving device to engrave a corresponding segmental section of the surface of the roll. 10. An en raving machine comprising a supporting rame provided with bearings for sustaining the roll to be engraved, a pattern support mounted at one sideof the longitudinal axis of; said roll, a, attern mounted adjustably in the direction Yof the axis of'the roll upon said jsup ort,== a tool support extending longitudina roll and upon the side of its axisopposite the pattern support, a tool carrier adjustable lengthwise upon said tool support, a routin tool and holder therefor supported by sai tool carrier and located between said pattern support and said tool support, an, arm connected to the holder of the routing tool and provided with a tracing stylus, said stylus eing mounted over said pattern, and gear ly of said.

mechanism for rotating said roll in its bearo. n; sEiiBoRNE; 

